The Effect of Acids and Alkalis on Bacterial Growth
he results of the experiment show that the hypothesis should be accepted. The higher the concentration of acid/alkali, the more bacteria it kills.
This experiment is useful because it tells us what conditions which are not suitable for bacteria survival. Scientists can develop alternative methods to eradicate harmful bacteria once they know about this experiment.
Will all bacteria react the same way to acid and alkali?
What other methods are able to kill bacteria?
How can you minimize the effect of random error in this experiment?
The following bacteria types can be used as alternatives for this experiment:
Safety concerns: All biohazard material should be disposed into the sharps bin. Students must put on safety goggles and lab coat at all times throughout this experiment. Teachers must be on standby especially when students are removing the bacteria culture out of the bottle. Disinfectants must also be prepared in case of any bacteria culture spills.